SOLUTION: Someone bought a CD player for $250 and finds 2 years later when he wants to sell it that it's worth $100. Find a formula for the value of the CD player if the value decreases.

Question 564990: Someone bought a CD player for $250 and finds 2 years later when he wants to sell it that it's worth $100. Find a formula for the value of the CD player if the value decreases.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Someone bought a CD player for $250 and finds 2 years later when he wants to sell it that it's worth $100. Find a formula for the value of the CD player if the value decreases.
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You have 2 points: (0,250) and (2,100)
slope = (100-250)/(2-0) = -150/2 = -75
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Form: y = mz + b
250 = -75*0 + b
b = 250
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Equation:
value = -75(years) + 250
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Cheers,
Stan H.
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